{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb4b5dd8c32a439c8c2742a241f6460ba56402a47b789fabb931aac08f833544d",
    "signature": "0xcbe600e4138aaa49206a5bb47602e6ff858818f9f2e0fec56b795c9181870d3e6779cd63fa898880f93819d912af975c33cb362cfc6ca02f7da90ad7f5686a991b",
    "signer": "0x8D20850ea14B1793353e393795cA05123f1AB383",
    "userId": "982005048"
  }
}